View Compilation Error

0_0_2777092_14556.cpp: In function `int main()':
0_0_2777092_14556.cpp:30: error: invalid initializer
0_0_2777092_14556.cpp:36: error: `n' undeclared (first use this function)
0_0_2777092_14556.cpp:36: error: (Each undeclared identifier is reported only once for each function it appears in.)